A period is typically considered late if it is 5 or more days past the expected start date based on your usual menstrual cycle, which normally ranges from 21 to 35 days for adults. Occasional delays in periods are common and can be caused by stress, weight changes, exercise, illness, or hormonal imbalances. However, if your period is more than a week late, or if you miss three periods in a row without being pregnant, it is advisable to consult a healthcare provider to rule out any underlying health issues and receive appropriate care.
